A Stepladder Consists of Two Halves, Hinged at the Top

question 33

Multiple Choice

A stepladder consists of two halves, hinged at the top, and connected by a tie rod that keeps the two halves from spreading apart. In this particular instance, the two halves are 2.50 m long, the tie rod is connected to the center of each half and is 70.0 cm long. An 800-N person stands 3/5 of the way up the stepladder, as shown in the figure. Neglecting the weight of the ladder, and assuming that the ladder is resting on a smooth floor, what is the tension in the tie rod? Note: To solve this problem you must "cut" the ladder in half and consider the equilibrium of forces and torques acting on each half of the ladder.

• A) 140 N
• B) 240 N
• C) 280 N
• D) 360 N
• E) 560 N

Analyze the effectiveness of substituting parties in a contract.

Understand the concept of accord and satisfaction in contract modification.

Identify the effect of external factors, like court orders or legislative changes, on contracts.

Assess the legality and enforceability of contract terms in light of changing laws.

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